as_freqlist: Coerce table to a frequency list
| as_freqlist | R Documentation |
Coerce table to a frequency list
Description
This function coerces an object of class table to an object of class freqlist.
Usage
as_freqlist(x, tot_n_tokens = NULL, sort_by_ranks = TRUE)
Arguments
x |
Object of class |
tot_n_tokens |
Number representing the total number of tokens in the
corpus from which the frequency list is derived. When |
sort_by_ranks |
Logical.
If |
Value
An object of class freqlist, which is based on the class table.
It has additional attributes and methods such as:
base
print(),as_data_frame(),summary()andsort,-
tibble::as_tibble(), an interactive
explore()method,various getters, including
tot_n_tokens(),n_types(),n_tokens(), values that are also returned bysummary(), and more,subsetting methods such as
keep_types(),keep_pos(), etc. including[]subsetting (see brackets).
Additional manipulation functions include type_freqs() to extract the frequencies
of different items, freqlist_merge() to combine frequency lists, and
freqlist_diff() to subtract a frequency list from another.
Objects of class freqlist can be saved to file with write_freqlist();
these files can be read with read_freqlist().
See Also
freqlist()
Examples
toy_corpus <- "Once upon a time there was a tiny toy corpus.
It consisted of three sentences. And it lived happily ever after."
## make frequency list in a roundabout way
tokens <- tokenize(toy_corpus)
flist <- as_freqlist(table(tokens))
flist
## more direct procedure
freqlist(toy_corpus, as_text = TRUE)
## build frequency list from scratch: example 1
flist <- as_freqlist(c("a" = 12, "toy" = 53, "example" = 20))
flist
## build frequency list from scratch: example 2
flist <- as_freqlist(c("a" = 12, "toy" = 53, "example" = 20),
tot_n_tokens = 1300)
flist
